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QED
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English
[en]
Most large new telescope mirrors these days are thin... designed to be mounted on metal scaffolding.
Korean
[ko]
요즘 대부분의 큰 새로운 망원경의 거울은 얇습니다. 이 것은 금속 비계를 탑재할수있게 디자인 되었습니다.
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